42719613 has 4 divisors (see below), whose sum is σ = 56959488. Its totient is φ = 28479740.

The previous prime is 42719609. The next prime is 42719617. The reversal of 42719613 is 31691724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (42719609) and next prime (42719617).

It is a cyclic number.

It is not a de Polignac number, because 42719613 - 2² = 42719609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42719617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7119933 + ... + 7119938.

It is an arithmetic number, because the mean of its divisors is an integer number (14239872).

Almost surely, 2^42719613 is an apocalyptic number.

It is an amenable number.

42719613 is a deficient number, since it is larger than the sum of its proper divisors (14239875).

42719613 is a wasteful number, since it uses less digits than its factorization.

42719613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14239874.

The product of its digits is 9072, while the sum is 33.

The square root of 42719613 is about 6536.0242502610. The cubic root of 42719613 is about 349.5766664054.

The spelling of 42719613 in words is "forty-two million, seven hundred nineteen thousand, six hundred thirteen".